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Synonym to anal sex in different Finno-ugrian language groups.
Hey baby, you wanna have Mattis tonight?

" I had the best Mattis of my life yesterday".
by Jari Suomi August 08, 2009
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aka Matti Nykänen: A former Finnish ski-jumper who without a doubt is the best ski-jumper in the world. After his active career as an athlete in the 80's he has lived a somewhat reckless life as a performing stage artist, ended up with three divorces so far and made every effort to live his life in total missharmony ending up to tabloids once in a while.

Alcohol being a major originator in his missleaps of life in many cases has resulted him to be almost a legend in Finnish drinking culture. His immature slogans and bad performing/singing skills have made him to be a common joke in his vocational field, but his popularity however is thereby guaranteed.
"Kaikki on allright ainakin minulla. En tiedä, onko muilla" = "everything's allright with me at least, dunno 'bout others"
"Se on ihan fifty-sixty miten käy" = "it's a pretty fifty-sixty how it turns out to be"
"Elämä on ihmisen parasta aikaa." = "life is the best time in life"
"Saksa-Itävalta on mun toinen kotimaa" = "Germany-Austria is my second motherland"

And many more...
by Esko Pasko February 27, 2004
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A sexy French girl with an amazing body, matti is very funny and is usually admired by many guys. She's very funny and and outgoing.
by Gracie's January 03, 2015
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Mattis is a character in the book Ronja Rövardotter, by Swedish author Astrid Lindgren. Mattis is Ronjas dad and robber chieftain. He lives with robbers, his wife and daughter Ronja Lovis in a large castle that has been divided by a lightning strike. He is a person with strong emotions, he was bubbling with happiness and pride when Ronja born, when he is angry he throws things around him and he becomes fully enraged when Ronja befriends the son of his worst enemy, Borka. In the film version portrayed by actor Börje Ahlstedt.
I liked that Mattis character best!
by Dr Fittneger February 05, 2010
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She’s is medium height slim and thicc athletic blonde with usually blue eyes. She is kind and tough and can kick it with the boys and chill with her girls. She is strong and stubborn lots of people want to get with her but usually can’t bc she is already taken.
Omg... i wish i was matti.
by The truth honey February 10, 2019
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